string   motorId
int16    temperature              #uint:Celsius(danger: 120-140)
int16    position
int16    speed
int16    current                  #unit:1mA
int16    voltage                  #unit:10mV  (range:4.8V~7.4V)
int16    torqueMax

#int16   goalPosition
#int16   goalTime
#int16   torqueEn     
